本期内容：

A whole avocado every day could be the secret to keeping heart disease at bay for overweight people.
Tests showed a 10 per cent cut in harmful cholesterol levels in seriously overweight volunteers who ate one a day for five weeks as part of a moderate-fat diet.
The fruit appears to interrupt the release of low-density lipoprotein, the ‘bad’ cholesterol that furs arteries and causes life-threatening blockages to the heart, say experts at Pennsylvania State University in the US.

the secret to: 做某事诀窍是……
keep…at bay: 阻止……发生
(prevent sth. from happening)

cholesterol n. 胆固醇

interrupt vt. 打断，阻断
lipoprotein n. 脂蛋白
fur vt. 使（血管） 堵塞
artery n. 动脉
life-threatening blockage: 致命的阻塞



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